<template>
  <div class="login_background" v-show="show" :style="moveStyle">
      <div class="login_box">
          <div class="title">登录</div>
          <el-form class="login_form" :model="loginForm" :rules="loginRules" ref="loginRef">
              <el-form-item prop="username">
                  <el-input placeholder="用户名" v-model="loginForm.username" prefix-icon="el-icon-user" clearable>
                  </el-input>
              </el-form-item>
              <el-form-item prop="password">
                  <el-input show-password clearable v-model="loginForm.password" prefix-icon="el-icon-lock"
                      placeholder="密码">
                  </el-input>
              </el-form-item>
              <el-form-item class="login_button">
                  <el-button type="success" round plain @click="login">登录</el-button>
              </el-form-item>
          </el-form>
      </div>
  </div>
</template>

<script>
  import {
      mapState
  } from "vuex";
  export default {
      name: 'login',
      data() {
          return {
              loginForm: {
                  username: '',
                  password: '',
              },
              loginRules: {
                  username: [{
                      required: true,
                      message: '请输入用户名',
                      trigger: 'blur'
                  }],
                  password: [{
                      required: true,
                      message: '请输入密码',
                      trigger: 'blur'
                  }],
              },
              show: true,
              moveStyle: {}
          }
      },
      methods: {
          login() {
              this.$refs.loginRef.validate(async valid => {
                  if (!valid) return
                  if (this.username != this.loginForm.username) {
                      this.$store.commit('CLEAR');
                  }
                  this.$store.commit('LOGIN', this.loginForm)
                  this.$refs['loginRef'].resetFields()
                  this.$router.push("/home")
                  this.$message({
                      type: 'success',
                      message: '登陆成功'
                  })
              });
          },
      },
      computed: {
          ...mapState({
              username: (state) => state.username,
          }),
      },
  }
</script>

<style scoped>
  .login_background {
      background-color: #89D8A7;
      border-radius: 7px;
      width: 320px;
      height: 500px;
      position: fixed;
      margin-top: -60px;
      box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
      transition: all 0.5s;
  }

  .login_box {
      padding: 101px 0px;
  }

  .title {
      text-align: center;
      font-size: 30px;
      font-weight: bold;
      color: #F6F6F6;
      letter-spacing: 10px;
      padding-bottom: 40px;
  }

  .login_form {
      padding: 0px 30px;
      box-sizing: border-box;
  }

  .login_button {
      padding-top: 30px;
      display: flex;
      justify-content: space-between;
  }
</style>